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Subject: Re: [PATCH net-next] net: microchip: lan743x : bidirectional throughput
 improvement
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <170053202527.14605.1759031814684336138.git-patchwork-notify@kernel.org>
Date:   Tue, 21 Nov 2023 02:00:25 +0000
References: <20231116054350.620420-1-vishvambarpanth.s@microchip.com>
In-Reply-To: <20231116054350.620420-1-vishvambarpanth.s@microchip.com>
To:     Vishvambar Panth S <vishvambarpanth.s@microchip.com>
Cc:     netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        kuba@kernel.org, jacob.e.keller@intel.com,
        bryan.whitehead@microchip.com, UNGLinuxDriver@microchip.com,
        davem@davemloft.net, edumazet@google.com, pabeni@redhat.com
Precedence: bulk

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Thu, 16 Nov 2023 11:13:50 +0530 you wrote:
> The LAN743x/PCI11xxx DMA descriptors are always 4 dwords long, but the
> device supports placing the descriptors in memory back to back or
> reserving space in between them using its DMA_DESCRIPTOR_SPACE (DSPACE)
> configurable hardware setting. Currently DSPACE is unnecessarily set to
> match the host's L1 cache line size, resulting in space reserved in
> between descriptors in most platforms and causing a suboptimal behavior
> (single PCIe Mem transaction per descriptor). By changing the setting
> to DSPACE=16 many descriptors can be packed in a single PCIe Mem
> transaction resulting in a massive performance improvement in
> bidirectional tests without any negative effects.
> Tested and verified improvements on x64 PC and several ARM platforms
> (typical data below)
> 
> [...]

Here is the summary with links:
  - [net-next] net: microchip: lan743x : bidirectional throughput improvement
    https://git.kernel.org/netdev/net-next/c/45933b2db91b

You are awesome, thank you!
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